This research is a studying and developing building constructing material that is reducing the usage of energy in a building and it is made from rubber and rice straw. This research aims to both improve the economic and raise the energy conservation idea. This research will find the proper building material that is heat resistance. From interviewing the expert the researcher came up with the best formula to produce this heat resistance board. The formula is to add water to the rubber (one part rubber and three parts water) and spay it on a flatted bed of rice straw. Then heat it for one hour in a temperature of one hundred degree Celsius. After that mix in borax to make this material heat and fire resistance. All theses testing; the heat resisting and water absorbing this material has past the standard to be used in an indoor building constructing (มยผ. 8101-51) Department of Public works and town planning Ministry of Interior 2008. From that point on the researchers designed a pattern on the material to add the look for home and building decorating. Therefore they are two sizes of the material; 0.60 x 0.60 x 0.10 meter and 0.60 x 1.20 x 0.10 meter.

The research is to present the biogas production from rice straws with anaerobic digester. Firstly three digester tanks contain dry rice straw 3 kg slice with length 1-2 inch and water 60 lite. Digester A was a control sample. Digester B was designed for minimum performance (add the morass 2 lite) while the digester C was designed for Carbon/Nitrogen control (add urea 1 kg.). The biogas was operated for 30 days and measured which highest percent of Lower Explosive Limit was 93%. This studied show the simple methods to producing the biogas from the rice straw.

Thesis is the development of radio-controlled lawn mower which can move and cut the grass in the desired environment and dangerous to human. The objective is to develop a radio-controlled lawn mower. The results showed that the rate of fuel consumption of controlled lawn mower in to cutting grass. The height of the grass at 6 8 and 10 cm. It has the average fuel consumption is 113 117 and 123 ml. The average time in the mowing is 6.6 8.01 and 9.69 minutes

This paper presents a study of heat exchanger design for improving the performance of ice maker by using waste water from ice factory. The heat exchanger was made of stainless steel and had 4.023 m2 of heating surface. After using the heat exchange in the waste water pond which the temperature was 0 C the temperature of feed water was decreased from 28 C to 22 C. The COP of the ice maker was increased and the factory can save energy consumption 52034 kWh/year or 61993 baht/year. The payback period was 0.5 year

The study of Electronic Marketing Communication Towards Buying Decision Behavior which aims to research the consumer behavior in term of receiving message through electronic marketing communication channels. The research compares several channels of electronic marketing communication that lead to buying decision. The method is information collecting from 400 targeted respondents and data analysis by SPSS statistical program. Respondents selected the following electronic marketing communication which is the best tool for buying motivation respectively: The information search through internet by Search Engine system reason: convenience of use